I'm also looking for whatever episode "Mmm, mmm CREAMY!" was from (I used to know but forgot), and another episode where Ziggy was stuck in a tree and Robbie was like "Can't you fall a little quieter?"

There was another scene where Robbie had a spit-take with the cake but it might be one of the episodes previously mentioned.

What Episode Was That Scene From? - thread

That volume control is from Sportafake. Don't know the time but it's in the first part of the episode.
It's really a coincidence because I watched that episode-video yesterday from LazyTown-Spanish official YouTube channel and corrected the subtitles.